Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Nomeie os singles femininos de 2012.
 ###Tabelas: CREATE TABLE lpga_tour_wins_8 (lpga_tour_wins_8_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Winning score VARCHAR, Margin of victory VARCHAR, Runner(s)-up VARCHAR) CREATE TABLE missions_table (missions_table_id AUTO_INCREMENT PRIMARY KEY, Year INT, Mission type VARCHAR, Shogun VARCHAR, Ryūkyūan King VARCHAR, Lead Envoy VARCHAR, Number in entourage VARCHAR) CREATE TABLE round_5 (round_5_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Home VARCHAR, Score VARCHAR, Away VARCHAR, Attendance INT) CREATE TABLE governors_of_missouri (governors_of_missouri_id AUTO_INCREMENT PRIMARY KEY, Governor VARCHAR, Took office VARCHAR, Left office VARCHAR, Party VARCHAR, Lieutenant Governor VARCHAR, Terms VARCHAR) CREATE TABLE previous_winners (previous_winners_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Men's singles VARCHAR, Women's singles VARCHAR, Men's doubles VARCHAR, Women's doubles VARCHAR, Mixed doubles VARCHAR)  
SELECT Women's singles FROM previous_winners WHERE Year = 2012